Backport the latest POIFS/NPOIFS code from trunk, along with Util to power it, and HPSF to use it. Also makes a few tweaks to let existing code compile against these new versions

git-svn-id: https://svn.apache.org/repos/asf/poi/branches/NIO_32_BRANCH@1053791 13f79535-47bb-0310-9956-ffa450edef68
188 files changed